SE8502514D0 - PROCEDURE FOR MANUFACTURING A BAINITHERED SAIL - Google Patents

PROCEDURE FOR MANUFACTURING A BAINITHERED SAIL

Info

Publication number
SE8502514D0
SE8502514D0 SE8502514A SE8502514A SE8502514D0 SE 8502514 D0 SE8502514 D0 SE 8502514D0 SE 8502514 A SE8502514 A SE 8502514A SE 8502514 A SE8502514 A SE 8502514A SE 8502514 D0 SE8502514 D0 SE 8502514D0
Authority
SE
Sweden
Prior art keywords
austenite
temperature
ferrite
bainite
casting
Prior art date
Application number
SE8502514A
Other languages
Swedish (sv)
Other versions
SE8502514L (en
Inventor
S-E Stenfors
Original Assignee
Volvo Ab
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Volvo Ab filed Critical Volvo Ab
Priority to SE8502514A priority Critical patent/SE8502514L/en
Publication of SE8502514D0 publication Critical patent/SE8502514D0/en
Priority to EP86850178A priority patent/EP0203050A1/en
Priority to FI862137A priority patent/FI862137A/en
Priority to PT8262986A priority patent/PT82629B/en
Publication of SE8502514L publication Critical patent/SE8502514L/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D5/00—Heat treatments of cast-iron

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatment Of Articles (AREA)

Abstract

A method for producing austempered spheroidal graphite iron having a microstructure comprising bainite, ferrite and austenite. A nodular-iron casting containing 2-3.5% Si, 0-2% Mn, 0-5% Ni 0-0.3% Sn, 0-03% Cr, 0-3% Mo, 0-1.5% Cu, and 3.3-3.8% C and at most 0.08% P and 0-015% S is partially austenitized by heat treatment at a temperature beneath the temperature at which austenite and graphite or austenite are in equilibrium, but within the temperature range in which ferrite, austenite and graphite are in equilibrium. The temperature of the casting is then rapidly lowered by at least 100 K min<-><1>, and is held at a constant temperature within a range of 235 and 425 DEG C, wherewith part of the austenite formed is converted to bainite to provide a casting that includes a bainite structure with a residual austenite content of 5-40%, preferably 15-20%, and a ferrite content of 10-15%, preferably 20-40%.
SE8502514A 1985-05-22 1985-05-22 PROCEDURE FOR MANUFACTURING A BAINITHERED SAIL SE8502514L (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
SE8502514A SE8502514L (en) 1985-05-22 1985-05-22 PROCEDURE FOR MANUFACTURING A BAINITHERED SAIL
EP86850178A EP0203050A1 (en) 1985-05-22 1986-05-20 A method for manufacturing austempered spheroidal graphite iron
FI862137A FI862137A (en) 1985-05-22 1986-05-21 FOERFARANDE FOER FRAMSTAELLNING AV ETT BAINITHAERDAT SEGJAERN.
PT8262986A PT82629B (en) 1985-05-22 1986-05-22 A method for manufacturing austempered spheroidal graphite iron

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8502514A SE8502514L (en) 1985-05-22 1985-05-22 PROCEDURE FOR MANUFACTURING A BAINITHERED SAIL

Publications (2)

Publication Number Publication Date
SE8502514D0 true SE8502514D0 (en) 1985-05-22
SE8502514L SE8502514L (en) 1986-11-23

Family

ID=20360299

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8502514A SE8502514L (en) 1985-05-22 1985-05-22 PROCEDURE FOR MANUFACTURING A BAINITHERED SAIL

Country Status (4)

Country Link
EP (1) EP0203050A1 (en)
FI (1) FI862137A (en)
PT (1) PT82629B (en)
SE (1) SE8502514L (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114231830A (en) * 2021-11-05 2022-03-25 宁国东方碾磨材料股份有限公司 Nodular cast iron grinding ball and preparation method thereof

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63166928A (en) * 1986-12-26 1988-07-11 Kurimoto Iron Works Ltd Manufacture of tough bainitic spheroidal graphite cast iron
SE464226B (en) * 1988-12-13 1991-03-25 Sandvik Ab ROLLING RING, COMPOSITION OF HEAVY METAL AND MOLDING AND SET FOR MANUFACTURING THEREOF
FR2709133B1 (en) * 1993-08-18 1995-11-10 Tech Ind Fonderie Centre Intercritical treatment process for cast iron charges.
FR2712606B1 (en) * 1993-11-19 1996-02-09 Tech Ind Fonderie Centre Process for the production of a spheroidal graphite cast iron charge with high mechanical characteristics.
US5837069A (en) * 1997-09-16 1998-11-17 Weyburn-Bartel Inc. Cast iron components and method of making
JP5319871B2 (en) * 2004-12-17 2013-10-16 ゼネラル・エレクトリック・カンパニイ Ductile iron alloy
SE531107C2 (en) 2006-12-16 2008-12-23 Indexator Ab Method
CN104152787B (en) * 2014-07-25 2017-01-11 安徽省宁国诚信耐磨材料有限公司 Nodular cast ball and manufacturing method thereof
CN106756464A (en) * 2016-12-27 2017-05-31 宁国市华丰耐磨材料有限公司 A kind of preparation method of large size Austria iron body ductile iron abrading-ball

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2853870A1 (en) * 1978-12-13 1980-07-03 Schmidt Gmbh Karl BALL GRAPHITE CAST IRON WITH AUSTENITIC-BAINITIC MIXED TEXTURE
JPS60121253A (en) * 1983-12-05 1985-06-28 Nissan Motor Co Ltd Spheroidal graphite cast iron

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114231830A (en) * 2021-11-05 2022-03-25 宁国东方碾磨材料股份有限公司 Nodular cast iron grinding ball and preparation method thereof

Also Published As

Publication number Publication date
FI862137A (en) 1986-11-23
SE8502514L (en) 1986-11-23
EP0203050A1 (en) 1986-11-26
FI862137A0 (en) 1986-05-21
PT82629A (en) 1986-06-01
PT82629B (en) 1987-09-28

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Effective date: 19880126